The human heart beats at a rate of 72 beats per minute

Thus, over a lifetime of 65 years, the heart is capable of contracting 2.5 billion times.

There are some moments of respite in the heart's operation: then it "keeps silent" between contractions. During a lifetime, the heart "rests" for about two decades.

Nawwwww! Baby pigmy hippos are sooooo cute!! 😍😍

Taronga Zoo in Sydney Australia has just released footage of a brand new pygmy hippo calf, birthed by mum Kambiri late last month.

These shy, nocturnal hippopotamids hail from the forests and swamps of Liberia and surrounding African countries, where they feast on ferns, broad-leaves, grasses and fruits. Less that 2,500 remain in the wild, thanks to illegal hunting and habitat loss.

This youngster is part of an important captive breeding program to assure this species' survival.

What roads look like in the United Arab Emirates after a dust storm

A Gorilla has to walk upright in the rain to avoid his knuckles getting wet, and he's not pleased about it

American man permanently moved to Russia. To show loyalty to Putin and Russia he tattooed a Z sign on his face

Man Vibing With Beer

USA under 16 vs El Salvador under 16

The bite force of a piranha

Execution by cannon, Shiraz, Iran. 1890s.

Refraction is the change in the direction of a beam occurring at the boundary of the two media through which it passes

Test Pilot George Aird flying an English Electric Lightning F1 ejected from his plane at only about 100 feet in 1962... he survived -

It's not just people who go through rehabilitation

Really cute video with a happy ending.
A dog is being taught to walk again after a spinal cord injury.

Chicago